test/testplatform.c
author Sam Lantinga <slouken@libsdl.org>
Fri, 11 Mar 2011 13:22:43 -0800
changeset 5469 810b7f9bac86
parent 5389 24903690f48a
child 5512 56ab281d7d3e
permissions -rw-r--r--
Fixing permissions
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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#include <stdio.h>
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#include "SDL.h"
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#include "SDL_endian.h"
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#include "SDL_cpuinfo.h"
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#include "SDL_assert.h"
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/*
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 * Watcom C flags these as Warning 201: "Unreachable code" if you just
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 *  compare them directly, so we push it through a function to keep the
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 *  compiler quiet.  --ryan.
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 */
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static int
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badsize(size_t sizeoftype, size_t hardcodetype)
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{
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    return sizeoftype != hardcodetype;
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}
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int
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TestTypes(SDL_bool verbose)
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{
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    int error = 0;
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    if (badsize(sizeof(Uint8), 1)) {
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        if (verbose)
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            printf("sizeof(Uint8) != 1, instead = %u\n",
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                   (unsigned int)sizeof(Uint8));
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        ++error;
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    }
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    if (badsize(sizeof(Uint16), 2)) {
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        if (verbose)
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            printf("sizeof(Uint16) != 2, instead = %u\n",
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                   (unsigned int)sizeof(Uint16));
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        ++error;
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    }
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    if (badsize(sizeof(Uint32), 4)) {
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        if (verbose)
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            printf("sizeof(Uint32) != 4, instead = %u\n",
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                   (unsigned int)sizeof(Uint32));
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        ++error;
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    }
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#ifdef SDL_HAS_64BIT_TYPE
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    if (badsize(sizeof(Uint64), 8)) {
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        if (verbose)
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            printf("sizeof(Uint64) != 8, instead = %u\n",
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                   (unsigned int)sizeof(Uint64));
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        ++error;
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    }
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#else
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    if (verbose) {
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        printf("WARNING: No 64-bit datatype on this platform\n");
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    }
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#endif
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    if (verbose && !error)
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        printf("All data types are the expected size.\n");
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    return (error ? 1 : 0);
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}
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int
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TestEndian(SDL_bool verbose)
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{
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    int error = 0;
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    Uint16 value = 0x1234;
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    int real_byteorder;
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    Uint16 value16 = 0xCDAB;
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    Uint16 swapped16 = 0xABCD;
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    Uint32 value32 = 0xEFBEADDE;
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    Uint32 swapped32 = 0xDEADBEEF;
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#ifdef SDL_HAS_64BIT_TYPE
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    Uint64 value64, swapped64;
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    value64 = 0xEFBEADDE;
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    value64 <<= 32;
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    value64 |= 0xCDAB3412;
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    swapped64 = 0x1234ABCD;
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    swapped64 <<= 32;
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    swapped64 |= 0xDEADBEEF;
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#endif
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    if (verbose) {
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        printf("Detected a %s endian machine.\n",
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               (SDL_BYTEORDER == SDL_LIL_ENDIAN) ? "little" : "big");
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    }
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    if ((*((char *) &value) >> 4) == 0x1) {
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        real_byteorder = SDL_BIG_ENDIAN;
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    } else {
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        real_byteorder = SDL_LIL_ENDIAN;
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    }
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    if (real_byteorder != SDL_BYTEORDER) {
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        if (verbose) {
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            printf("Actually a %s endian machine!\n",
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                   (real_byteorder == SDL_LIL_ENDIAN) ? "little" : "big");
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        }
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        ++error;
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    }
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    if (verbose) {
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        printf("Value 16 = 0x%X, swapped = 0x%X\n", value16,
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               SDL_Swap16(value16));
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    }
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    if (SDL_Swap16(value16) != swapped16) {
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        if (verbose) {
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            printf("16 bit value swapped incorrectly!\n");
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        }
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        ++error;
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    }
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    if (verbose) {
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        printf("Value 32 = 0x%X, swapped = 0x%X\n", value32,
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               SDL_Swap32(value32));
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    }
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    if (SDL_Swap32(value32) != swapped32) {
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        if (verbose) {
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            printf("32 bit value swapped incorrectly!\n");
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        }
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        ++error;
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    }
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#ifdef SDL_HAS_64BIT_TYPE
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    if (verbose) {
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#ifdef _MSC_VER
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        printf("Value 64 = 0x%I64X, swapped = 0x%I64X\n", value64,
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               SDL_Swap64(value64));
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#else
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        printf("Value 64 = 0x%llX, swapped = 0x%llX\n", value64,
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               SDL_Swap64(value64));
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#endif
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    }
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    if (SDL_Swap64(value64) != swapped64) {
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        if (verbose) {
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            printf("64 bit value swapped incorrectly!\n");
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        }
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        ++error;
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    }
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#endif
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    return (error ? 1 : 0);
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}
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int
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TestCPUInfo(SDL_bool verbose)
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{
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    if (verbose) {
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        printf("CPU count: %d\n", SDL_GetCPUCount());
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        printf("CPU cache line size: %d\n", SDL_GetCPUCacheLineSize());
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        printf("RDTSC %s\n", SDL_HasRDTSC()? "detected" : "not detected");
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        printf("AltiVec %s\n", SDL_HasAltiVec()? "detected" : "not detected");
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        printf("MMX %s\n", SDL_HasMMX()? "detected" : "not detected");
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        printf("3DNow! %s\n", SDL_Has3DNow()? "detected" : "not detected");
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        printf("SSE %s\n", SDL_HasSSE()? "detected" : "not detected");
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        printf("SSE2 %s\n", SDL_HasSSE2()? "detected" : "not detected");
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        printf("SSE3 %s\n", SDL_HasSSE3()? "detected" : "not detected");
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        printf("SSE4.1 %s\n", SDL_HasSSE41()? "detected" : "not detected");
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        printf("SSE4.2 %s\n", SDL_HasSSE42()? "detected" : "not detected");
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    }
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    return (0);
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}
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int
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TestAssertions(SDL_bool verbose)
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{
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    SDL_assert(1);
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    SDL_assert_release(1);
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    SDL_assert_paranoid(1);
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    SDL_assert(0 || 1);
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    SDL_assert_release(0 || 1);
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    SDL_assert_paranoid(0 || 1);
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   166
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   167
#if 0   /* enable this to test assertion failures. */
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    SDL_assert_release(1 == 2);
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    SDL_assert_release(5 < 4);
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    SDL_assert_release(0 && "This is a test");
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   171
#endif
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   172
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    return (0);
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}
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   176
int
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main(int argc, char *argv[])
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{
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    SDL_bool verbose = SDL_TRUE;
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    int status = 0;
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   181
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    if (argv[1] && (SDL_strcmp(argv[1], "-q") == 0)) {
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        verbose = SDL_FALSE;
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   184
    }
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    if (verbose) {
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   186
        printf("This system is running %s\n", SDL_GetPlatform());
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    }
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    status += TestTypes(verbose);
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    status += TestEndian(verbose);
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    status += TestCPUInfo(verbose);
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   192
    status += TestAssertions(verbose);
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   193
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    return status;
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   195
}